Equalized car-truck.



OH. E. DOERR.

EQUALIZED GAR TRUCK.

APPLICATION FILED DBG. 2s, 191s.

1,1 1 6,034- Patented Noy.3,1911,

A /0 l i .up l X l Il www? 'A I I ,//206/3/2/1@ Y vfifa-222;?ie/v? EQUALIZED CRJJTRUCEL intense,

Specication of Letters atent.

freien-tee e.

- Application tiled December 2G, 1315i. Serial oj'l To all whom 'it may concern: v

it known that l, Henne; E. Donnie, 'a citizen ot' the United States, residing et Louis, Missouri, have invented a certain new and usetnl Improvement in Equalized Cai. -Truclrs more particularly to that class known as equalized trucks;

ne ma]ority of the so-called equalized trucks now in general use eniploy a floating equaliser-bar that has its'ends lying on tcpv 'of a pair of journahboxes and separated 'that e shock received by one wheel is not evenly distributed to both of the Wheels on `that side of the truck.

The main oby'ectv 03: my present invention' is to provide a tour-Wheel car truck ofthe class described, in which'any vertical niotion, given to one of the journal-boxes therev of is transferred to its companion journalboxvin even proportion. In other Words, a;-

shock caused by any unevenness in the road bed, received by one Wheel, will be equally divided between it :ind `its companion Wheelv on the saine side of the truck.

Another object is to provide a car truck" in 1which the equalizing springs andbeani are so disposed that the truck is rendered more ilexible than the trucks now in general use. y n

Still another object is to provide a four- Wheel car truck of the equnlized type in Which, the equalizing springs and beam are practically inclosed or housed Within the side frames. @ther objects and desirable features of iny invention will be hereinafter pointed out.

Figure l of the drawings is a side eleva# tional View, partly broken away, ot a car truck constructed in accordance. with my invention', Fig. 2 isan end elevational View one of the Side frames of .seid truck; end 3 is a vertical sectional View of one of the Side frames teilten approximately on the line 3MB of Fig. 1."

Referring' to the drawings which illustrate the preferred forni of iny invention,

A designates a cast metal sido traine of av fonr-nheel car truck provided adjacent each end witli a pair of pedestaljaws l ,for receiving journal-boxes 13 and intermediate its ends with a depending portion in which 1s arranged an opening 2 for receiving the bolster' B and the bolster-supporting springs v. Each of the journal-boxes Bis provided With-pairs of spaced guide lugs on' the side Walls thereof that coperate with the pedestal jews l to iiiaintain said journal-box in operative position in said frame, said jonrnal-boxes being movable vertically. inderounded projection 9 arranged on the under side of the top chord' of the frame etV approximately the center thereof, and the ends of said beam are connected to t-he`1oating links 7, as shown lclearlyV in Fig. 1.

The side frarneA is preferably formed from `a single casting that is provided with a tiat top chord from which dependsidewells l0 atboth the 4front 4and rear edges thereof, thus making .the upper portion of i said side frame of substantially inverted chan nel-shape in cross section, Within the con' fines of which are arranged the equalizing springs i and the benin 8; and,fwhile l here herein lshown the pedestal .jaws l 'as being formed integral with the side frame A, I i,

do not wish to limit myself to this exact construction, las said jaws couldbe formedl separately and bolted onto the-side traine` withoutdepartingroin the spirit of iny in- Ventron.

'By forming the truck; in the inenner'juetdescribed l ein enabled tosuccessfuliy einn plof/'the spherical bearings 5 on the springs flanc' eliminate all outside means for pre- 'eniing laeral znovemen of tbe equalizing g for said parte, Abeing housed in the ppor portion 'of elle frame A, are main tained in proper operai-ive position. and absolutely prevented rom' lateral displacement. providing spherical bearings tween tbe journal-boxes and vtbe. springs Ll, the boxes are permitted 4to rock slightly 'itbin tlie limits of play allowed by the jaws l and tlie'copernting guide lugs 3 thus rendering elle truck more flexible than tbe trucks new in general use. ceived bj' one of the wheeis of the truck, places a Strain on the' journalof said Wheel, that automatically transmitted to the journal of the opposite. wheel, in the same proportion in which it was received; or, in other words,- the sli-ain due to a shock reeeived by one Wheel is evenly divided between 'the journal of both Wheels on that side of alle truck. and the sp1-inve el being of equal tension will :uito1natically restore the equalizing parts to their normal posiion after the shock has passed. Y y

Having thus described my invent-ion, what I elaini as new and desire to Secure by Let- ?aentis: 4 l. ln a ear truck, 'a east: metal side frame, rerticailj" movable journal boxes mounted in integral jaws on said side frame adjacenfl eeeli end. liereof7 :io-'depending portion integral with said Side freine iliat is arraned between said journal boxes and provioed with a bolster-receiving opening, ami ayeflm A slioclr, reffiller-mined on an inegrevl pifo' located centrally above said boleterreceiving` opening, said beam baring its ends jf'ieldmgly connected io said journal boxes.

9. In a car lruck, a cast ineal side frame, a pair of rerically movable journal boxes mounted in integral jaws on said side frame, 'an integral dependincf portion on said side frame that. is arrange between said journal boxes and provided with a bolser-reeeiing opening1 and means on said side frame arranged above said depending portion hat cooperates with means ou said j onrnal boxes whereby a shock given to one of said jounal boxes is ransferred to the other of said journal boxes.

3. In a four-wheel truck, a- Qair of eastmetal side frames provi'fled with bolserfe ceiving openings, a pair of vertically inorable journal boxes nioilnl'eo in integral jaws formed on each o said side frames, a bolster and bolrsterfsnpporting springs.I and levers ulcrnmed at *die longitudinal Center of said side 'frames at a point above said bolster receiving openings and baring the ends diereo yieldingly connected tosaid journal ln testimony whereof l hereunto aiix signature in elle presence of two witnesses, this 92nd day of December 1913.

HARRY E. @GEBR lWitnesses HARRY C. Dnmmoss, CHARLES P. GoaMAN. 

